Improvement in horseshoes



G. DUNNING.

A, Horseshoes. 910,147,752, Patented Feb. 24, 11874.

y Tigz f, a heel-bar, which may beused or not.

UNITED STATES PATENT OFFICE.

GERARD DUNNING, OF CHICAGO, ILLINOIS.

IMPROVEMENT IN HORSESHOES.

Specification forming part of Letters Patent No. 147,752, dated February 24, 1874; application filed October 13,1873.

To all whom it may concern: l

Beit known that I, GERARD DUNNING, of the city of Chicago, in the county of Cook and State of Illinois, have inventedA neuT and useful Improvements in Horseshoes, of which the following is a full description, reference being had to the accom pan yin g drawings, in which- Figure I is a bottom view of the shoe; Fig. 2, a side elevation; Fig. 3 a section at w, and Fig. 4 a section at y, Fig. 2; Fig. 5, a horizontal section of part of the shoe at line z, Fig. 3.

My invention consists in providing the horseshoe with a series of side calks of peculiar construction.

In the drawings, in Fig. 1, I have represented the under side of my improved shoe. a a represent a series of side calks, each of which is convex on the outside and concave on the inside. Between these side calks are deep recesses b. The calks being convex upon the outside, a space, i, (see Figs. l and 4,) is left between the several calks to receive the nails. h may be considered as a plate to which the calks are attached, although, in manufacturing, the part h and calks may be all made together. c is the toe-calli, of ordinary construction; and

c 1s in fact, a side call; the same as a, except that there is no recess between it and the heel-call; proper, cl. c and d are connected, and, together, form a strong heel-calli.

It will be observed that that which might be considered as the base of the calk is very broad and strong, the calk on the inside runningdown on the incline to the inner edge of the plate 71,. The outsideV of the calk is slightly inclined, as well as curved, to allow the shoe to be easily drawn from the earth.

By this mode of construct-ion I provide the shoe with a number of side calks upon each side, each independent of the other, and yet sufficiently connected to be strong, furnishing a number of points to prevent slipping. form of these calks upon the inside is such that the shoe will be self-cleaning. This shoe is suitable for summer or winter use.

The most convenient way of manufacturing the shoe, so that it will be durable, will be to cast it from cast-steel; but I do not Wish to limit myself to this speciiic mode of manufacturing.

This shoe furnishes a support for the foot of a horse at all points as perfectly as does a shoe having a continuous calli, without the objections to such calli. At the same time the construction of the side calks is such that in whatever position the foot cornes in contact-with the ground it will be almost impossible for the horse to slip. The convex form upon the outside of the calk is the most perfect which can be devised for the purpose, and at the same time it enables nie to provide the recesses 'c' to receive the nails, which is a very desirable feature.

I am aware that shoes have been made hav- Iing side calks, and do not therefore claim,

with spaces for the nails, and having recesses b between theseveral calks, substantially as and for the purposes specified.

GERARD DUNNING.

Witnesses:

E. A. WEST, O. W. BOND.

The 

